Function ValidAliasExpansionFunc

pkg/cmd/alias/shared/validations.go:36–51

ValidAliasExpansionFunc returns a function that will check if the given string is a valid alias expansion. An expansion is valid if: - it is a shell expansion, - it is a non-shell expansion that corresponds to an existing command, extension, or alias.

(cmd *cobra.Command)

//   - it is a shell expansion,
//   - it is a non-shell expansion that corresponds to an existing command, extension, or alias.
func ValidAliasExpansionFunc(cmd *cobra.Command) func(string) bool {
	return func(expansion string) bool {
		if strings.HasPrefix(expansion, "!") {
			return true
		}

		split, err := shlex.Split(expansion)
		if err != nil || len(split) == 0 {
			return false
		}

		rootCmd := cmd.Root()
		cmd, _, _ = rootCmd.Find(split)
		return cmd != rootCmd
	}
}